AC97 on i.MX27

AC97 on i.MX27

[Jan Weitzel]

Hello, 
I am trying to get an Wolfson WM9712L working with AC97 on a i.MX27. I saw 
some patches for 2.6.22 on the list. Does anybody have further worked on 
this, or is it a good point to start from? 

Kind Regards 
Jan Weitzel
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AC97 on i.MX27

[Marek Vasut]

Dne St 2. z??? 2009 13:59:50 Jan Weitzel napsal(a):
> Hello,
> I am trying to get an Wolfson WM9712L working with AC97 on a i.MX27. I saw
> some patches for 2.6.22 on the list. Does anybody have further worked on
> this, or is it a good point to start from?

WM9712 is supported by mainline kernel since long ago.
>
> Kind Regards
> Jan Weitzel

AC97 on i.MX27

[Mark Brown]

On Wed, Sep 02, 2009 at 04:07:03PM +0200, Marek Vasut wrote:
> Dne St 2. z?????? 2009 13:59:50 Jan Weitzel napsal(a):

> > I am trying to get an Wolfson WM9712L working with AC97 on a i.MX27. I saw
> > some patches for 2.6.22 on the list. Does anybody have further worked on
> > this, or is it a good point to start from?

> WM9712 is supported by mainline kernel since long ago.

Indeed; if nothing else it's standard conforming for the audio so a
vanilla AC97 driver should just work.  The problem is more the i.MX AC97
controller - there's some more current support for it in

	git://opensource.wolfsonmicro.com/linux-2.6-asoc.git dev

however I've no idea if it actually works or not.

AC97 on i.MX27

[Hans J. Koch]

On Wed, Sep 02, 2009 at 01:59:50PM +0200, Jan Weitzel wrote:
> Hello, 
> I am trying to get an Wolfson WM9712L working with AC97 on a i.MX27. I saw 
> some patches for 2.6.22 on the list. Does anybody have further worked on 
> this, or is it a good point to start from? 

Well, I've got it working with a UCB1400 codec/touch controller on a
Garz&Fricke Neso board. But that's a bunch of patches on top of that
dungheap of a Freescale queue. Really not worth posting that. It's
basically Lothar's version with two or three fixes, mostly touchscreen
related (we never used it for audio).

So yes, Lothar's patch is a good starting point. You might also have a
look at Sascha's git tree, maybe he picked something up.

Thanks,
Hans